The Greenlite Lighting MH250/U/MOG ED28 250 Watt Metal Halides E39 Mogul Base HID Lamp is a member of the High Intensity Discharge (HID) family of lamps, producing high light output for its size and making a compact, powerful, and efficient light source. Metal Halides Lamp provides better color performances, better color comfort and longer life hours up to 15,000. Metal halide bulbs with a mogul base are used in many applications like residential roadways, low-bay industrial, high-bay industrial, aircraft hangars, and warehouse.